Fluid-control means for motors



g F. PoKoRNY FLUID 'CONTROL MEANS FOIILMOTORS original Filed May 1. 1920 Patented Aug. 16, 1927.

UNITED srA'rEs PAT ENT OFFICE. f

FRANK POKORNY, 0F MAMARONECK, NEW YORK, ASSIGNOR, BYDIRECT AND MESN'EA I ASSIGNMENTS. OF ONIxleI-IALIE1v T0 FRANCIS W. KEEGAN, OF vNEW YORK, N. Y.

FLUID-CONTROL MEANSl FOR MOTORS.

Original application led May 1, 192,0, SerialkNo. `378,190.k Divided and this r18, 1924. Serial No. 738,398.

This invent-ion relates to fluid supply control means for internal combustion engines, and my present improvenients, whichform the subject of this application, have been divided out from my earlier application, Serial No. 378,190, tiled May 1, 1920.

lVhile in said earlierl application I have` claimed certain means whereby a controlling' valve is caused to open under the' suction pull created by the aspiratory operation of the engine, and is also subject to a drag. force opposed to the lift force, it is my purpose in this divisional application to cover means for varying the degree or strength of the .drag force in its application to and effect upon the valve. l

Other features and advantages of my invention will hereinafter appear. y

In'the drawingsl Figure 1 is an elevation partly in section, of a fluid passage including my improved control means. y

Fig. 2 is a partial, enlarged view of the tame, but showing the device as including the regulating means which are the subject of the present application.

Fig. 3 is a section on the line 3 3 of Fig. y

2, and Y v l f F ig. 4 is a section on the line 4 4 of Fig. 2. In the drawing, let 1 indicate a tube which is in communication with a carburetor (not shown), and let 2 indicate a tube which communicates with or forms part of an engine intake manifold. Thetubes 1 and 2 are connected, as by flanges, 3, 4, by means of an.

intermediary, cylindrical casing 5, which serves as a duct or passage for the fuel miX- ture flowing to the engine.

In tube 1 I have shown a throttle valve 6,

which however may be otherwise located.`

The elements of the control means, to be hereinafter described, may be snugly contained within the casing 5, that may be a casting, as by a threaded annulus 7 that is screwed the annulus 7 itself forming a supporting base for said elements. Y

In this manner, by removing the bolts 8 that unite flanges 3, 4, with the flanges 9l of casing 5, the latter, with the contained control elements may be bodily removed from its line position.

Fitting within the'low'er portion of cajsing 5, and supported on the annulus 7 is a cylindrical member having the outer concentric wall 10, the relatively shorter, inner concentric wall 11, in spaced relation with wall 'p 17 extends up from thewall 10, carrying the inwardly ydirected arms 18, which support a centered cone 19 in the path of the fluid ascending to theV manifold.

y The portion 17, which has a shoulder or under surface 20 overhangingthe concentric space 29, which comprises a vacuum chamber, is provided with a llower cylindrical` portion 2 1 as part of its inner surface, said surfacel continuing upwardly from portion 21, at an outwardinclination,` to a pointl near the upper end of portion17, where it'has a reentrant incline.

The outer conformation of nozzle member 15 is that of a double cone, having the upper conoidal portion 22, and the lower, inverted conoidal portion 23, the junction of said conoidal portions representing the major diameter of the member 15, whose periphery, in the horizontalv plane of said major diameter, co-actsrwith a tubular valve member 24 for the passage of regulated supplementary quotas of fluid in a manner to be hereinafter described.

The tubular valve 24 has an intermediary or body portion, with an upward skirt-like portion 25, and a lower, skirt portion 26, the skirt 25 extendingfrom the most restricted diametral part of said body portion. while the skirt 26 depends from the major diametral part thereof. f

It is at the most restricted diametral part of the valve body portion that said valve is' contiguous to the nozzle member 15, at the major diameter thereof, because it is application led SeptemberA and forms the lower clocircularly by said walls 10'v .ber being "inclined surface 27,

the function of the valve to rise and recede from that location to thereby provide for the passage of fluid in regulated volume.

Interiorlyof the said restricted diametral part of the valve body port-ion, the latter is given a downward and outward inclination, designated as inclined surface 27, that lies above the upper peripheral edge Il of wall Il. Valve 24, at the ou-ter surface of its body portion and skirt- 26 is in slidable relation with wall 10, and said skirt 26 has at its lower end flange 28, whose inner in slidable relation to the wall l1. so that the space I3 is reduced in areav by the thickness of skirt 26 and flange 28 therein. and said reduced space is bounded by wall Il, skirt 26. and flange 28. Therefore valve 24 is normally seated by gravity with its flange 28 upon base l2, and the clearances between the valve and wall 10and between the inner perpihery of flange 2S and wall 1I, though said clearances are sufficient only to permit slidable movement to the valve, also serve another function which will be treated of hereinafter.

The vacuum chamber 29 is provided for the operation of valve 24 under the aspiratory tension of the enginge, said chambounded by wall l0. skirt 25, surface 2O1 and an opposed surface 30 which comprises the upper surface of the valve body portion, whereby the rarefaction. and suction pull in chamber 29', plus the impiuging pressure of ascending fluidk against, the tend to raise said valve. rIhe suction pull ofthe engine takes. effect in the chamber 29 through the clearance between the cylindrical portion 3l of slrirt 25 and the surface 2l, this clearance enlarging with the rise of the valve to a given point owing to the special formations of the skirt periphery is located and the portion 17, whereby the opening an inturned concentric of valve 24 during the low range of engine speed is slow, and is more rapid during the higher range of engine speed.

In Figs. 2, 3, and Ll I have exemplified means whereby the degree of suction drag foro-e applied to the valve 2l is rendered variable by the use of means for regulating the area of the opening which communicates with the valve base.

In Fig. 2 vent means is shown as comprising an orifice 34 provided in portion iT in communication with a vertical channel 35 extending down the rear surface of said portion and down the rear surface of wall l0, to the base l2', where it communicates wit i an orifice 85a extending horizontally to a point beneath the valve 2%, and to a ver ical open-y ing 36". regulated by needle 'valve for the application of suction drag force to the valve base. i

As here shown the valve 36 is provided with a lrnurl'ed head 36 by which it may be adjusted to regulate 'the size of opening Variations within the spirit and scope of my invention are equally comprel'iended by the foregoing disclosure.

I claim:

In fluid supply means for internal coin-- bu-stion engines, in con'ibina;ionq a control valve, means whereby said valve is lausol to open under the suction pull create the as] )iratory operation of the er e, `a chamber in which said valve is operable', means of communication includ g an auxiliary passage whereby saidl valve is :ubjected to a drag force, opposed to the lift force, by said suctionpull, and iii-cans for regulating the degree of drag force to modify its effect upon the valve.

Executed this 3rd day of September, i924.

FRANK PUK@ EN Y. 

